California ICC UST Service Technician Practice Exam

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Prepare for the California ICC UST Service Technician Exam. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your certification!

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What is the maximum fuel tank capacity before a positive shut off overfill protection device must stop the flow of fuel?

90% full
92% full
95% full
98% full

The correct answer is: 95% full

The requirement for a positive shut-off overfill protection device is set to ensure safety during the fueling process by preventing overflows and potential spills. A maximum fuel tank capacity of 95% full is mandated before a positive shut-off mechanism must be activated. This threshold signifies the importance of having a safety buffer to accommodate fuel expansion, prevent spillage, and maintain safe operational conditions. Choosing this specific percentage helps in adhering to environmental regulations and preventing contamination. It’s crucial that operators remain aware of this capacity to ensure they are in compliance with safety standards and practices, thereby helping to protect both the facility and the surrounding environment.